Mesa 5i25+7i77 plug-n-go configuration

Config string is the same with the sample one.

Field power... is it something about W12 or W1 jumper? We've tried all combinations of them having no satisfactual results.

LinuxCN version is 2.5. Are there any limitations?

Can you explain a little bit smart serial, because I do not get the thing from the host mot manual, probably there's a man about sserial that we"ve missed...


PS thanks for the prompt reply!

You _must_ supply the isolated field power (VFIELD) and field logic power (VIN)
(10-28 VDC) to the 7I77 for the field I/O section or the field I/O will not be available.
With default jumpering (W1 "LEFT") VIN is tied to VFIELD so only VFIELD need be suppled

The field power indicator is yellow LED CR2 on the top edge of the 7I77 card just to
the right of W1. If this is not on you will see no HAL I/O pins...

7I77 manual pages 2,5 and 14 are relevant here

W12 (and W4) should not be changed unless you are updating 7I77 firmware

Nick !
Did you enable the power jumpers on 5i25 ?

Yeeha! We've got the inputs!
The problem was with the additional Power Supply! Sorry for disturbing with such lame problem and Thanks for help !

Nick! I would appreciate if you please describe what you were facing and how you solve it ?

I'll try to.

So one of the members of cnc-club.ru (not me) faced the problem with 7i77+5i25. He could not see any digital inputs or outputs on 7i77 while encoders and analog outputs seemed to work fine.

The problem was solved by adding additional power to 7i77, in fact it is written in the DataSheets that this additional power supply is needed to power up I/O processor. We were lazy to read it, and the guy who had the problem is not too good in English. So once again RTFM .

Are you facing the same problem?

yes ! I am facing the same.

We were lazy to read it

True.

could you please point me the relevant page no. of manual regarding additional power supply ? Thanks !

I think it at the 2 page

VIN POWER SOURCE
The isolated field I/O on the 7I77 runs from a switching power supply that can be
powered by field power or a separate supply (VIN) with ground common with field power.
Normally the 7I77 field I/O logic will be powered with field power and an on card jumper,
W1 allows VIN to be connected to field power. If you wish to use a single power supply for
the 7I77s output and logic power, W1 should be placed in the left hand position. This
connects field power to VIN. If you wis


And TB2 FIELD POWER
TB2 is the 7I77s field power connector. TB2 is a eight pin 3.5 MM pluggable
terminal block supplied one eight pin removable screw terminal plugg. TB2 pinout is as
follows:
...


Also look at the replies from andypugh and PCW in this thread.